Le Cheslé

Le Cheslé is a Celtic camp just southwest of the village of Bérismenil in the municipality of La Roche-en-Ardenne in the Belgian province of Luxembourg. The camp is difficult to reach and is located on a rocky promontory that rises 80 meters above the river Ourthe into the stream valley as a kind of peninsula. To the east, south and west, the rock is surrounded by the Ourthe that winds around the high plateau. On the north side is the only access, which was originally only accessible via a narrow path on a ridge. The grounds of the fort cover 14 hectares. To a large extent, the fort is protected by the steep walls and on the less steep parts a double wall of earth, slate and wood of more than 1750 meters long has been built.

Wikipedia